Anchoring device



Juy 14, J.. H. MOLATA A 2,403,541 A NCHORING DEV Filed Feb. 1, 1945 1919. 5 mmm. 40@ W BYJfp/ff/WL/,f

Patented July 9, 19,46

UNITED STATESy j PATENT OFFICE ANCHORING DEVICE Joseph H. Molat, NewYork, N. Y.

Application February' 1, 1945, Serial No'. 575,643

(Cl. 85v2`.4)

3 Claims. l

My invention relates to anchoring devices of the type employed forattaching objects to walls made of concrete, brick or the like.

One of the objects of my invention is to proivide an anchoring device ofthe class described which shall be of such improved con-struction thatthe object may be attached to a wall even when the attaching holestherein do not yline up exactly with the anchoring device inserted inthe wall, allowing for variations of alignment in all directions.

Another object of my invention is to provide an anchoring device of theclass described which shall comprise relatively few and simple parts,which shall be easy yto assemble and use and which atV the same timeshall possess a high degree of efficiency and effectiveness in use.

Still another object of my invention is to provide anranchoring deviceof the class described which shall be lso constructed and arranged thatobjects attached to the ceiling thereby and depending therefrom will beplumb even when the attaching holes in the object are not in exactalignment with the anchor device in the ceiling.

Further objects of my invention will become apparent in the detaileddescription thereof to follow or will be hereinafter pointed out.

In the accompanying drawing,

Fig. 1 is a cross-sectional view through a portion of a wall showing theanchoring device of my invention in position for effective use;

Fig. 2 is a front elevational view thereof;

Fig. 3 is a View taken substantially along the line 3-3 of Fig. 1;

Fig. 4 is a cross-sectional view similar to Fig. 1, but illustrating amodified form of my invention; and

Fig. 5 is a view taken substantially along the line 5-5 of Fig. 4.

Referring now in detail to the drawing I have shown a wall anchoringdevice constructed and arranged in accordance with my invention andillustrating the same as inserted in a wall W in the customary manner ofinserting anchoring devices. The wall W may be of brick, concrete or anyother well known wall materia1 and the anchoring device comprises atubular member I0 of rigid metallic material of the nature of ironhaving a through axial opening II. The member ID is provided, at itsinner end. with an enlarged outwardly flared end Illa. The wall portionsI 0b and IIlc, extending from the flared end Illa to the outer end,surrounding the opening I I are outwardly tapered, as shown, the purposeand function of which will soon become apparent.

2- The portion Ind of the wall surrounding the opening II at thejunction of the end Illa and tapered wall portion Iilb is concaved toserve as a seat for a correspondingly curved portion I5a' of theenlarged head I5b of a rigid metallic member I5 freely received withinthe opening II. It isl noted that the shank portion of the member I5 isprovided with an internally thread-Y ed axial opening I6, and that theoutside diameter of the said shank portion is considerablyv less thanthe opening II so that it may move freely therein. The enlarged headportion |51) limits the axial movement of the member I5'. Due tothemating seating arrangement of the correspondingly curved portions I5aand Ind, the member I5 may pivotally move in all direc-V tions,providing a universal mounting for the member I 5.

The shank portion of the member ID may -be surrounded'by a soft metallicsheath 25, as is known and customarily employed in the art, forretaining the member I0 rmly in the wall W.`

To attach an object to the wall W by means of the anchor device justdescribed it is merely necessary to pass a suitable screw 25 through acorresponding attaching opening in the object and thread the same in thethreaded opening I6 of the member I5 as clearly shown in Fig. 1 of thedrawing. The enlarged head I5b of the member I5 will hold the saidmember captive, while the head of the screw 25 will maintain the objectagainst the wall W.

In accordance with my invention, as above described, if the opening inthe object through which the screw is passed is out of alignment withthe opening 20 in the member I5, the said member I5 will adjustablypivotally move itself within the opening II and thus the object may beattached without drilling new openings in the object or removing andrepositioning the anchor device.

It is also noted that should the anchor device be positioned in aceiling or top wall for the pur-4 pose of hanging an object therefrom,the said object will always hang straight and in plumb due to theconstruction of my anchor device as described above which permitsuniversal free movrlnent of the member I5 within the opening To providea better frictional grip of the head I5b of the member I5 against theseat IIId, when the screw 25 is tightened, I may providecircumferentially spaced ribs I9 on the convexed portion I 5a of themember I5.

In Figs. 4 and 5 I have shown a modified form o1'. my invention in whichthe construction of all the parts are identical with those illustratedin the Figs. 1 to 3 form of invention except that the opening 3l in themember 30, corresponding to the opening I6 in the member l5, runsaxially clear through the said member 30 and a countersunk portion 32 isprovided in the enlarged head portion of the member 30. In this form ofmy invention a screw member 40 is inserted in the opening 3l from theinner end before the anchor member is inserted in the wall W, the head40a thereof being received in the corresponding countersunk portion 32and the shank portion of the screw 40 extending beyond the Wall W. Thisextending shank portion of the screw 40 is adapted to pass through theopening in the object and a nut 50 and Washer 5l placed thereon to holdthe said object in iirm attachment to the wall W. In this form of myinvention, as in the Figs. 1 to 3 form, the member 30 is freely mountedfor universal pivotal movement to compensatingly adjust itself todisalignment between the opening in the object and the axis of theopening of the anchor device in the wall W.

In accordance with the provisions of the patent statutes, I have hereindescribed the principle and operation of my invention, together with theconstruction which I now consider to represent the best embodimentthereof, but I desire to have it understood that the construction can becarried out by other means. Also While it is designed to use the variousfeatures and elements in the combination and relations described, someof these may be altered and others omitted without interfering with themore general results outlined, and the invention extends to such `use.

Having described my invention, what I claim and desire to secure byLetters Patent is:

1. For use in attaching an object to a wall or ceiling, an anchor deviceof the character described comprising a relatively rigid first tubularmember, a soft metallic sheath surrounding said rst tubular member, thesaid rst tubular mem- 4 ber and sheath being adapted to be received inan opening in said wall and frictionally retained therein, the innerWall of said i'lrst tubular member having a relatively enlarged headportion at the inner end thereof and a relatively constricted portion,the said relatively constricted portion being tapered outwardly fromsaid head portion to the opposite end thereof, a second rigid membercomprising an enlarged head portion and a shank portion, said secondmember being disposed within said first member with the enlarged headportion of said second member nested within the enlarged head portion ofsaid first member and with said shank portion nested within theconstricted portion of said rst member, the enlarged head portion ofsaid second member being larger than said constricted portion of saidrst member whereby the axial movement' of said second member will belimited in an outward direction, the size of said shank portion of saidsecond member being such as to provide a free space between the outerwall thereof and the inner wall of said constricted portion of said rstmember to permit free adjustable angular movement of said second memberwith respect to said' first member for the purposes set forth and meansfor attaching an object fastening screw member or bolt to said secondmember.

2. An anchor device according to claim 1 in which the enlarged headportion of said second member is provided with a plurality of ridges tovthe opening in said second member,l the head of' said bolt resting inthe enlarged head portionrof` said second member. y.

JOSEPH H. MOLAT.

